BBQ Pork Sloppy Joes

1 Preheat oven to 450 degrees. Wash and dry all produce. Cut sweet potatoes into ½-inch-thick wedges. Toss on a baking sheet with a drizzle of oil, salt, and pepper. Roast until browned and tender, 20-25 minutes. 2 Meanwhile, halve and peel onion. Slice as thinly as possible until you have ¼ cup (½ cup for 4 servings); finely chop remaining onion. Peel and finely chop garlic. Halve lime; squeeze juice into a small bowl. Halve buns. Add 1 TBSP butter (2 TBSP for 4) to a separate small microwave-safe bowl; microwave until melted, 30 seconds. Brush onto cut sides of buns. 3 To bowl